Baubin M A, Gilly H, Posch A, Schinnerl A, Kroesen G A
Department of Anaesthesia and Intensive Care Medicine, Leopold-Franzens-University of Innsbruck, Austria.
Resuscitation. 1995 Oct;30(2):117-26. doi: 10.1016/0300-9572(95)00874-s.
We evaluated the force-depth compression characteristics of 8 different CPR manikins during mechanical cardiopulmonary resuscitation by a thumper. The force required to compress the manikin's thorax of 1, 2, 3, 4 and 5 cm was measured. It ranged between 6.3 and 14 kp at a depth of 1 cm, 11.6-30 kp at 2 cm, 17-38 kp at 3 cm, 22.5-54 kp at 4 cm and 28.5-69 kp at 5 cm. The manikins with a spring in the thorax (Ambu Man, Ambu MultiMan, Dräger CPR-Max, Laerdal Resusci Anne) as well as one without (Ambu CPR Pal) showed a rather linear relationship between depth and force required to compress the chest. Ambu Man, set at 'High', Laerdal Resusci Anne and Dräger CPR-Max revealed a slight increase in resistance, whereas 2 manikins without a spring (Laerdal Little Anne, Laerdal Family Trainer) and 1 manikin with a plastic spring-like construction (Actar 911) exhibited less resistance with increasing depth. According to our results, the manikins are not uniform in their compression characteristics; some become nonlinear when 3 cm of compression is exceeded. For correct CPR it is of utmost importance that the CPR trainee learns to compress in a sufficiently strong manner, but simultaneously to avoid an exceedingly high depth of compression irrespective of the thorax resistance. In order to prepare the CPR student for the varying chest resistances of the human body, we recommend to train CPR on manikins with different chest resistances.
我们通过一个胸外按压机评估了8种不同心肺复苏模拟人在机械心肺复苏过程中的压力-深度压缩特性。测量了将模拟人的胸部压缩1厘米、2厘米、3厘米、4厘米和5厘米所需的压力。在1厘米深度时，压力范围为6.3至14千帕，2厘米时为11.6至30千帕，3厘米时为17至38千帕，4厘米时为22.5至54千帕，5厘米时为28.5至69千帕。胸部有弹簧的模拟人（安布模拟人、安布多功能模拟人、德尔格CPR-Max、挪度复苏安妮）以及一个没有弹簧的模拟人（安布CPR伴侣）在胸部压缩深度和所需压力之间呈现出相当线性的关系。设置为“高”的安布模拟人、挪度复苏安妮和德尔格CPR-Max显示阻力略有增加，而2个没有弹簧的模拟人（挪度小安妮、挪度家庭训练器）和1个具有塑料弹簧状结构的模拟人（阿克塔尔911）随着深度增加阻力较小。根据我们的结果，模拟人的压缩特性并不统一；有些在超过3厘米的压缩深度时会变得非线性。对于正确的心肺复苏来说，至关重要的是心肺复苏培训学员要学会以足够有力的方式进行按压，但同时要避免按压深度过高，而不管胸部阻力如何。为了让心肺复苏学员为人体不同的胸部阻力做好准备，我们建议在具有不同胸部阻力的模拟人上进行心肺复苏训练。
